Create a new multimod AST (Abstract Syntax Tree) node

This is a generic constructor for all ast node types, used internally by the *() functions to define structured equations.

Constructs a set object used as an index domain for other symbols (e.g., mappings, parameters, variables, equations).

Usage

new_ast(node_type, ..., inherits_class = NULL)

ast_set(name)

node_type: The type of AST node (e.g., "expression", "variable", "constant", "parameter", "symbol").
...: Additional named fields passed as components of the AST node.
inherits_class: Optional character vector of extra classes inserted between node_type and "ast" in the class attribute.
name: Character. Name of the set (e.g., "b").

A structured S3 object of class ast, with a subclass matching node_type.

An object of class ast and subclass set.

ast_set("b")                     # standalone set
#> <AST set> b